Hi Dennis,
About a week ago, with outside temps of about 36, I was running the front heat pump when it started to sound funny. My first thought was to turn it off but I looked very closely at the display on the thermostat and saw the word "Defrost". This is the first time I'd ever seen the word Defrost on the thermostat.
I searched some of the other iRV2 forums and it seems that "under 40 degrees" is just too cold to be using a heat pump.
Cheers!
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Mike and Mike (Michele)
2017 Winnebago Tour 42HD
Previously: 2004 Alpine 34 FDDS
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